Seiko Cal. 6663 - 996

The Seiko 6663-996 represents an important milestone in Seiko's 1971 lineup. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-dea199d594e4]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

34j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1971

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